<template>
    <div>
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <el-card>
            <div id="main" style="width: 100%;height:500px;">
            </div>
        </el-card>

    </div>
</template>

<script>
  let echarts = require("echarts");
  import _ from 'lodash';
  // 使用刚指定的配置项和数据显示图表。
  export default {
    name: "Reports",
    data() {
      return {
        options: {
          title: {
            text: '用户来源'
          },
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross',
              label: {
                backgroundColor: '#E9EEF3'
              }
            }
          },
          grid: {
            left: '3%',
            right: '4%',
            bottom: '3%',
            containLabel: true
          },
          xAxis: [
            {
              boundaryGap: false
            }
          ],
          yAxis: [
            {
              type: 'value'
            }
          ]
        },
      }
    },
    async mounted() {
      let myChart = echarts.init(document.getElementById('main'));
      const {data:res} = await this.$http({
        url:'reports/type/1',
        method:'get',
      });
      if (res.meta.status === 403) return this.$message.error(res.meta.msg);
      if (res.meta.status !== 200) return this.$message.error('获取图表数据失败');
      const result = _.merge(this.options,res.data);
      myChart.setOption(result);
    }
  }
</script>

<style scoped>
.el-breadcrumb{
    margin-bottom: 20px;
}
</style>